The Transactions of the Korean Institute of Electrical Engineers A (대한전기학회논문지:전력기술부문A)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Study on Adaptive Distance Protection of Double-circuit Line with Mutual Impedance and Fault Resistance

2회선 송전선로에서 상호임피던스와 고장저항을 고려한 거리계전기의 동작 특성 연구

  • 이원석 (한양대 공대 전기공학과) ;
  • 정창호 (한양대 공대 전기공학과) ;
  • 김진오 (한양대 공대 전기공학과)
  • Published : 2004.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

Power system has recently used Double-circuit Line and Multi-circuit Line in the industrial development. This has an advantage of system stability and reliability, but the complexity of the system has a disadvantage that makes it difficult to protect the power line. Double-circuit Line has two operation conditions in the Single-circuit operation and Double-circuit operation, so it has mutual impedance. To make it possible for the remaining single-line to operate independently while there is a fault with first line or when maintenance is needed, a trip region for the single-circuit operation should be set in order to set the relay trip region. An optimal trip region for each operation, a different operational conditions for the relay setting should be calculated. In this paper, trip regions of each operation condition have been compared by considering mutual impedance and fault resistance that led to the calculation of fault impedance. Also, as we know that one of the advantages in the distance relay is the back-up protection, we calculated the trip region(Zone-2) in consideration of the mutual impedance.

Keywords

References

  1. A. G. Jongepier and L. van der Sluis, 'Adaptive distance protection of a Double-circuit line', IEEE Trans. Power Delivery, Vol. 9, pp. 1289-1295, July 1994 https://doi.org/10.1109/61.311155
  2. Yi Hu, Damir Novosel, Murari M. Saha, 'An Adaptive Scheme for Parallel-Line Distance Protection', IEEE Trans. Power Delivery, Vol. 17, NO. 1, pp. 105-110, Jan 2002 https://doi.org/10.1109/61.974195
  3. Y. Q. Xia, K. K. Li, A. K. David, 'Adaptive Relay Setting for Stand-alone Digital Distance Protection', IEEE Trans. Power Delivery, Vol. 9, NO. 1, pp. 480-486, Jan 1994 https://doi.org/10.1109/61.277720
  4. Y. Q. Xia, A. K. David, K. K. Li, 'HIGH RESISTANCE FAULTS ON A MULTI-TERMINAL LINE: ANALYSIS, SIMULATED STUDIES AND AN ADAPTIVE DISTANCE RELAYING SCHEME', IEEE Trans. Power Delivery, Vol. 9, No. 1, pp. 492-496, Jan 1994 https://doi.org/10.1109/61.277721
  5. P. G. M. Laren, I. Fernando, H. Liu, E. Dirks, G. W. Swift, 'Enhanced Double Circuit Line Protection', IEEE Trans. Power Delivery, Vol. 12, No. 3, pp. 1100-1108, July 1997 https://doi.org/10.1109/61.636904